https://marketplace.tf/items/tf2/31200;5;u177

https://manic.tf/keyprice/?at=2023-02-10&site=marketplace.tf&price=80

$80 / $2.03 = 39.41 keys

https://manic.tf/keyprice/?at=2023-02-20&site=marketplace.tf&price=80

$80 / $2.05 = 39.02 keys

https://manic.tf/keyprice/?at=2023-03-28&site=marketplace.tf&price=58

$58 / $2.07 = 28.02 keys

https://backpack.tf/item/10422695949

https://backpack.tf/profiles/76561198035013576#!/compare/1674604800/1674691200

https://gladiator.tf/time-machine?item=Resonation%20Thousand-Yard%20Stare&at=2023-01-25T06:29:17.000Z

https://stntrading.eu/item/tf2/Unusual+Resonation+Thousand-Yard+Stare

It would look like this was dumped to STN.eu for ~30 keys (https://backpack.tf/item/11344696520 keys match from STN bot) before being sold from there

https://backpack.tf/profiles/76561198983763910#!/compare/1673913600/1674950400

Unclear what is sold for, but was re-dumped later regardless

https://backpack.tf/profiles/76561198983763910#!/compare/1675987200/1676592000

https://backpack.tf/profiles/76561199072654974#!/compare/1675987200/1676073600

https://gladiator.tf/time-machine?item=Resonation+Thousand-Yard+Stare&at=2023-02-10T23%3A49%3A00.000Z

Dumped for ~35 keys

https://backpack.tf/profiles/76561199072654974#!/compare/1679270400/1679356800

https://backpack.tf/profiles/76561198038779395#!/compare/1679270400/1679356800

https://gladiator.tf/time-machine?item=Resonation+Thousand-Yard+Stare&at=2023-03-23T16%3A57%3A00.000Z

44 keys

https://backpack.tf/item/12697714626

https://backpack.tf/profiles/76561198078413327#!/compare/1679270400/1681171200

https://backpack.tf/profiles/76561198033111049#!/compare/1679961600/1680134400

https://gladiator.tf/time-machine?item=Resonation+Thousand-Yard+Stare&at=2023-03-28T03%3A47%3A00.000Z

?, MP?

https://backpack.tf/profiles/76561198033111049#!/compare/1680134400/1680220800

https://backpack.tf/profiles/76561198013404226#!/compare/1680048000/1680220800

Movement/bulk

https://gladiator.tf/sales?item=Resonation%20Thousand-Yard%20Stare&at=2023-02-13T06:53:16.474Z

1 @ 24 keys

Sales:

24 (dump)

28

30? (dump)

35 (dump)

39

39

44

Classies: https://gladiator.tf/time-machine?item=Resonation%20Thousand-Yard%20Stare&at=2023-04-13T06:55:59.691Z

Buyer up to 28, seller down to 45.

Sale at 44 had been listed at 42 previously: https://gladiator.tf/time-machine?item=Resonation+Thousand-Yard+Stare&at=2023-03-10T17%3A01%3A00.000Z

https://gladiator.tf/time-machine?item=Resonation+Thousand-Yard+Stare&at=2023-03-08T03%3A37%3A00.000Z

Buyers had also been as high as ~36 at one point, but have since dropped and not recovered.

Going with a tighter range with bottom and top sales excluded, at 28 - 39 keys.